Lectures should go from being like the family singing around the piano to high-quality concerts.

Ninety percent of the cases of polio are in security-vulnerable areas.

I don't think there's anything unique about human intelligence.

We believe the world changes when the boldest thinking is directed at the toughest problems

Talking to mothers, always brings it home because they're so anxious to do everything they can for their kids and so tragic for them.

If you take from the most wealthy and give to the least wealthy, it's good. It tries to balance out.

When you have a fortune that is almost hard to imagine, the best thing is not to pass that on to one's children. That distorts their life situation.